> "cardinal sin of breaking portability. Basically every Prolog ever does that. Every single one."
Indeed; still Markus Triska speaks positively about, and recommends, different Prolog systems. He seems to prioritise things above ISO purity, and is not king of the hill of Scryer Prolog[1], he doesn't comment like others who act as if "the village and city can burn to the ground for all I care, heresy against ISO Prolog is NEVER acceptable". So when he's finding this objectionable even after considering that, it seems reasonable for me to weight it more strongly. It's not enough to make me stop using SWI, or stop me recommending it (as I did above).
The lack of portability is a bad problem in the Prolog world and it has bit me a few times, but surely the solution is for all the implementers to work together, rather than engage in petty feuding.
But the biggest problem of the Prolog community is what I pointed out above: there's very few of us and the field isn't really growing much.
Indeed; still Markus Triska speaks positively about, and recommends, different Prolog systems. He seems to prioritise things above ISO purity, and is not king of the hill of Scryer Prolog[1], he doesn't comment like others who act as if "the village and city can burn to the ground for all I care, heresy against ISO Prolog is NEVER acceptable". So when he's finding this objectionable even after considering that, it seems reasonable for me to weight it more strongly. It's not enough to make me stop using SWI, or stop me recommending it (as I did above).
[1] for other readers, Mark Thom's Prolog-in-Rust to be a type inference engine for his Lisp-in-Rust: https://github.com/mthom/scryer-shen